AMT 212 WEEK 2 PPT 3

Question 1

Types of reciprocating engine configuration

Answer 1

• Radial engine
• In-Line engine
• V-Type engine
• Opposed or Flat type engine

Question 2

Methods of cooling

Answer 2

• Air cooled
• Liquid Cooled

Question 3

• ____ engines has
  metal fins in the
  cylinder which are
  called cooling fins.
• The part of the cylinder
  which has more cooling
  fins is near the exhaust
  manifold or exhaust
  valve.

Answer 3

Air cooled engines

Question 4

the
heat is transferred from the
cylinders to the coolant,
which is sent through tubing
and cooled within a radiator
placed in the air stream

Answer 4

Liquid cooled engine

Question 5

Disadvantages of liquid cooled engine

Answer 5

Added weight of coolant,
heat exchanger (radiator),
water pump, and tubing.

Question 6

An ____ generally has an even
number of cylinders that are aligned in a
single row parallel with the crankshaft
* This engine may be liquid cooled or air
cooled and has only one crankshaft.

Answer 6

Inline Engine

Question 7

Two designs of an Inline engine:

Answer 7

• Inverted inline engine- The cylinder is located
  below the crankshaft.
• Upright inline engine- The cylinder is located
  above the crankshaft.

Question 8

Inline Engine advantages

Answer 8

• An in-line engine has a
  comparatively small frontal
  area and, therefore, allows
  for better streamlining and
  less drag.
• Inverted inline engines has
  its crankshaft higher off the
  ground. Higher crankshaft
  allows greater propeller
  ground clearance which, in
  turn, permitted the use of
  shorter landing gear.

Question 9

Inline engines disadvantages

Answer 9

• Have relatively low
  power-to-weight ratios.
• The rearmost cylinder
  of an air-cooled inline
  engine receive less
  cooling.

Question 10

The ____ has at least two
banks of cylinders
directly opposite of each
other with a crankshaft
in the center.

Answer 10

Opposed Engines

Question 11

• A ____ consists of a
  row, or rows of cylinders
  arranged radially about a
  central crankcase.

Answer 11

Radial engine

Question 12

The number of cylinders which
make up a row may be three,
five, seven or nine.

Answer 12

Radial engines

Question 13

Some ____ have two
rows of seven or nine cylinders
arranged radially about the
crankcase, on in front of the
other in a staggered
arrangement. These are called
double-row radials.

Answer 13

Radial engines